This is a quite ordinary new member post, but it's a first for me, as I've never really been active on a message board or wiki like this before. It seems like a good idea to introduce myself. I live in Pittsburgh, working as a behavior therapist and rehabilitation aide for people with autism and intellectual disability.
I love the SCP site because it's fiction that, with enough exposure, can change your experience of the everyday world—what if that object is sentient and influencing you to use it? Who really put up that flyer looking for research volunteers? Is that bug just not moving at the moment, or is it watching you?
Accordingly, my favorite SCPs are cognition or info hazards, or things that create subtle compulsions, particularly ones hidden inside everyday objects. An SCP that might be slowly affecting you without your awareness, altering the way you relate to other people, slowly driving your loved ones away as you wonder why… I find that much creepier and therefore more satisfying than any variation of statues that kill you or doors that open into oblivion.
This is the vein that most of my own SCP ideas run in; if you see any from me, they'll be pieces designed to create a paranoia and constant sense of unease that lucky readers can carry around with them after the site is closed. Man, I love this website.